CN108797687B - Drag head of trailing suction hopper dredger and control method thereof - Google Patents
Drag head of trailing suction hopper dredger and control method thereof Download PDFInfo
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- CN108797687B CN108797687B CN201810676212.XA CN201810676212A CN108797687B CN 108797687 B CN108797687 B CN 108797687B CN 201810676212 A CN201810676212 A CN 201810676212A CN 108797687 B CN108797687 B CN 108797687B
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- rotating head
- drag
- group
- filter screen
- fixed
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9256—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9293—Component parts of suction heads, e.g. edges, strainers for preventing the entry of stones or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a drag head of a trailing suction hopper dredger and a control method thereof, and relates to the technical field of dredgers. The invention comprises a rake front end, a connecting handle and an MCU control chip; one surface of the front end of the harrow is connected with the connecting handle; the front end of the harrow comprises a fixed seat, a filter screen, a fixed rod group and a rotating head group; one surface of the fixed seat is connected with the filter screen; the fixed rod group is connected with one surface of the fixed seat; the fixed rod group is matched and connected with the rotating head group; the connecting handle comprises a mud discharging pipe and a pressure sensor; a mud pipe is fixed on one surface of the connecting handle; a pressure sensor is arranged at the interface of the connecting handle and the mud discharging pipe; the rotating head group and the pressure sensor are electrically connected with the MCU control chip. According to the invention, the electric double drag heads which are overlapped front and back are arranged, so that the stirring capacity of the dredger for sludge is improved, the sludge cleaning efficiency of the dredger is enhanced, and the filter screen is arranged at the sludge suction port, so that other impurities in the sludge are prevented from being sucked into a pipeline to cause pipeline blockage.
Description
Technical Field
The invention belongs to the technical field of dredgers, and particularly relates to a drag head of a trailing suction dredger and a control method thereof.
Background
The drag suction dredger is a large self-propelled and bin-loading dredger equipped with a drag head excavator tool and a hydraulic mud suction device. When the dredger is used for dredging, the rake suction pipe is put down to the river bottom, mud is absorbed from the river bottom through the rake head and the mud suction pipe by utilizing the vacuum action of the mud pump and enters a mud bin of the dredger, after the mud bin is full, the rake is lifted to sail to a mud throwing area, a mud door is opened, mud is discharged, or the dug mud is directly discharged out of the dredger. At present, the common trailing suction hopper dredger loosens the soil through the traction force of hull self and the cooperation of rake head, and desilting efficiency is general, and debris in the silt often can block up the mud pipe in the clearance process in addition, reduces desilting work efficiency.
Disclosure of Invention
The invention aims to provide a drag head of a drag suction dredger and a control method thereof.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a drag head of a drag suction dredger and a control method thereof, wherein the drag head comprises a drag front end, a connecting handle and an MCU control chip; one surface of the front end of the rake is connected with the connecting handle;
the front end of the rake comprises a fixed seat, a baffle, a wire connecting pipe, a filter screen, a first fixed rod group 3, a second fixed rod group, a first rotating head group and a second rotating head group; a baffle is fixed in the fixed seat, and the baffle and the fixed seat are matched with each other to form an inner cavity; a circular opening is formed in one surface of the baffle; a wire connecting pipe is fixed in the open hole, so that the wire is prevented from contacting river water, and the service life of the wire is prolonged; one surface of the fixed seat is connected with the first fixed rod group; one surface of the first fixed rod group is connected with the first rotating head group; one surface of the fixed seat is connected with the second fixed rod group; one surface of the second fixed rod group is connected with the second rotating head group; the first fixed rod group and the second fixed rod group are arranged in parallel; the first rotating head group and the second rotating head group are arranged in parallel; a filter screen is fixed on the surface of the fixed seat, and the filter screen filters large-particle stones and garbage in the sludge;
the connecting handle comprises a wire protecting tube, a mud discharging tube and a pressure sensor; a wire opening is formed in one surface of the connecting handle; a wire protection tube is fixed in the wire opening; the wire protection tube is matched with the wire connecting tube; a mud pipe is fixed on one surface of the connecting handle; a pressure sensor is arranged at the interface of the sludge discharge pipe and the connecting handle;
and the first rotating head group, the second rotating head group and the pressure sensor are electrically connected with the MCU control chip.
Preferably, the filter screen is connected with the fixed seat through a motor; the motor is electrically connected with the MCU control chip.
Preferably, the first fixing rod group and the second fixing rod group are both hollow structures.
Preferably, the power for the drag head is provided by a dredger.
A control method of a trailing suction hopper dredger comprises the following steps:
SS 01: the MCU control chip controls the first rotating head group and the second rotating head group to rotate;
SS02: the pressure sensor monitors the water flow pressure and records the maximum water flow pressure;
SS03: when the pressure of the water flow is reduced to half of the maximum pressure of the water flow, the MCU control chip controls the first rotating head group and the second rotating head group to stop working and controls the filter screen to rotate around a connecting shaft of the filter screen and the fixed seat, so that the filter screen is separated from the fixed seat;
SS 04: the MCU control chip controls the filter screen to rotate around a connecting shaft with the filter screen and the fixed seat, so that the filter screen and the fixed seat are closed;
SS 05: the MCU control chip controls the first rotating head group and the second rotating head group to work.
The invention has the following beneficial effects:
1. according to the invention, the electric double drag heads which are overlapped front and back are arranged, so that the stirring capacity of the dredger for sludge is improved, and the sludge cleaning efficiency of the dredger is enhanced.
2. According to the invention, the filter screen is arranged at the sludge suction port, so that other impurities in the sludge are prevented from being sucked into the pipeline to cause pipeline blockage.
3. The filter screen provided by the invention can automatically rotate, and impurities blocked on the filter screen can be simply cleaned.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic front view of a drag head of a drag suction hopper dredger;
FIG. 2 is a schematic view of a back side structure of a drag head of a drag suction hopper dredger;
FIG. 3 is a top view of a drag head of a drag suction dredge;
FIG. 4 is a front view of a drag head of a drag suction dredge;
FIG. 5 is a schematic view of the front end of a rake head of a trailing suction hopper dredger;
FIG. 6 is a schematic cross-sectional view of the front end of a rake head of a trailing suction hopper dredger;
FIG. 7 is a schematic view of a connecting handle structure of a drag head of a drag suction hopper dredger;
FIG. 8 is a schematic view of the internal structure of a connecting handle of a drag head of a drag suction hopper dredger;
fig. 9 is a flow chart of a method for controlling the drag head of a trailing suction hopper dredger.
In the drawings, the components represented by the respective reference numerals are listed below:
1-rake front end, 2-filter screen, 3-first fixed rod group, 4-second fixed rod group, 5-first rotating head group, 6-second rotating head group, 7-connecting handle, 8-mud discharging pipe, 9-wire protecting pipe, 10-pressure sensor, 101-fixing seat, 102-baffle plate and 103-wire connecting pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "center," "inner," "around," and the like are used in an orientation or positional relationship for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.
The first embodiment is as follows:
referring to fig. 1-3, the present invention relates to a drag head of a trailing suction hopper dredger and a control method thereof, including a drag front end 1, a connecting handle 7 and an MCU control chip, and is characterized in that: one surface of the front end 1 of the harrow is connected with a connecting handle 7.
As shown in fig. 4-6, the rake front end 1 includes a fixing seat 101, a baffle plate 102, a wire connecting pipe 103, a filter screen 2, a first fixing rod group 3, a second fixing rod group 4, a first rotating head group 5 and a second rotating head group 6; a baffle plate 102 is fixed in the fixed seat 101, and the baffle plate 102 and the fixed seat 101 are matched with each other to form an inner cavity; a circular opening is formed in one surface of the baffle plate 102; a wire connecting pipe 103 is fixed in the open hole, so that the wire is prevented from contacting river water, and the service life of the wire is prolonged; one surface of the fixed seat 101 is connected with the first fixed rod group 3; one surface of the first fixed rod group 3 is connected with the first rotating head group 5; one surface of the fixed seat 101 is connected with the second fixed rod group 4; one surface of the second fixed rod group 4 is connected with the second rotating head group 6; the first fixed rod group 3 and the second fixed rod group 4 are arranged in parallel; the first rotating head group 5 and the second rotating head group 6 are arranged in parallel; a filter screen 102 is fixed on one surface of the fixing seat 101, and the filter screen 2 filters large-particle stones and garbage in the sludge.
As shown in fig. 7-8, the connection handle 7 includes a wire protection tube 9, a mud pipe 8 and a pressure sensor 10; a lead opening is formed in one surface of the connecting handle 7; a lead protection tube 9 is fixed in the lead open hole; the lead protection tube 9 is matched with the lead connecting tube 103; a mud pipe 8 is fixed on one surface of the connecting handle 7; a pressure sensor 10 is arranged at the interface of the mud pipe 8 and the connecting handle 7.
The first rotating head group 5, the second rotating head group 6 and the pressure sensor 10 are all electrically connected with the MCU control chip.
Preferably, the filter screen 2 is connected with the fixed seat 101 through a motor; the motor is electrically connected with the MCU control chip.
Preferably, the first and second fixed rod groups 3 and 4 are both hollow structures.
Preferably, the power for the drag head is provided by a dredger.
Example two:
referring to fig. 9, a method for controlling a trailing suction hopper dredger includes the following steps:
SS 01: the MCU control chip controls the first rotating head group 5 and the second rotating head group 6 to rotate;
SS02: the pressure sensor 10 monitors the water flow pressure and records the maximum water flow pressure;
SS03: when the pressure of the water flow is reduced to half of the maximum pressure of the water flow, the MCU control chip controls the first rotating head group 5 and the second rotating head group 6 to stop working and controls the filter screen 2 to rotate around a connecting shaft of the filter screen 2 and the fixed seat 101, so that the filter screen 2 is separated from the fixed seat 101;
SS 04: the MCU control chip controls the filter screen 2 to rotate around a connecting shaft of the filter screen 2 and the fixed seat 101, so that the filter screen 2 and the fixed seat 101 are closed;
SS 05: the MCU control chip controls the first rotating head group 5 and the second rotating head group 6 to work.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In addition, it can be understood by those skilled in the art that all or part of the steps in the method for implementing the embodiments described above can be implemented by instructing the relevant hardware through a program, and the corresponding program can be stored in a computer-readable storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, or the like.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A drag head of a drag suction dredger comprises a drag front end (1), a connecting handle (7), an MCU control chip and a fixed seat (101), wherein one surface of the drag front end (1) is connected with the connecting handle (7);
the surface of the fixed seat (101) is connected with the filter screen (2);
the connecting handle (7) comprises a lead protecting tube (9), a mud discharging tube (8) and a pressure sensor (10);
a lead opening is formed in one surface of the connecting handle (7); a lead protection tube (9) is fixed in the lead open hole; the lead protection tube (9) is matched with the lead connecting tube (103); a mud pipe (8) is fixed on one surface of the connecting handle (7); a pressure sensor (10) is arranged at the interface of the sludge discharge pipe (8) and the connecting handle (7);
the first rotating head group (5), the second rotating head group (6) and the pressure sensor (10) are electrically connected with the MCU control chip; the novel rake is characterized in that the front end (1) of the rake comprises a baffle (102), a wire connecting pipe (103), a filter screen (2), a first fixed rod group (3), a second fixed rod group (4), a first rotating head group (5) and a second rotating head group (6); a baffle plate (102) is fixed in the fixed seat (101); the surface of the baffle (102) is provided with a circular opening; a lead connecting pipe (103) is fixed in the open hole; the surface of the fixed seat (101) is connected with the first fixed rod group (3); the surface of the first fixed rod group (3) is connected with the first rotating head group (5); the surface of the fixed seat (101) is connected with the second fixed rod group (4); one surface of the second fixed rod group (4) is connected with the second rotating head group (6); the first fixed rod group (3) and the second fixed rod group (4) are arranged in parallel; the first rotating head group (5) and the second rotating head group (6) are arranged in parallel.
2. Drag head of a drag suction dredger according to claim 1, characterized in that the screen (2) and the holder (101) are connected by a motor; the motor is electrically connected with the MCU control chip.
3. Drag head of a drag suction dredger according to claim 1, wherein the first set of fixing bars (3) and the second set of fixing bars (4) are both hollow.
4. The drag head of a trailing suction hopper dredger according to claim 1, wherein the power for the drag head is provided by the dredger.
5. A method of controlling a drag head of a trailing suction hopper dredger according to any one of claims 1-4, comprising the steps of:
SS 01: the MCU control chip controls the first rotating head group (5) and the second rotating head group (6) to rotate;
SS02 pressure sensor (10) monitors water flow pressure and records water flow maximum pressure;
SS03, when the pressure of the water flow is reduced to half of the maximum pressure of the water flow, the MCU control chip controls the first rotating head group (5) and the second rotating head group (6) to stop working and controls the filter screen (2) to rotate around the connecting shaft of the filter screen (2) and the fixed seat (101) so as to separate the filter screen (2) from the fixed seat (101);
SS 04: the MCU control chip controls the filter screen (2) to rotate around a connecting shaft of the filter screen (2) and the fixed seat (101), so that the filter screen (2) and the fixed seat (101) are closed;
SS 05: the MCU control chip controls the first rotating head group (5) and the second rotating head group (6) to work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810676212.XA CN108797687B (en) | 2018-06-27 | 2018-06-27 | Drag head of trailing suction hopper dredger and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810676212.XA CN108797687B (en) | 2018-06-27 | 2018-06-27 | Drag head of trailing suction hopper dredger and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108797687A CN108797687A (en) | 2018-11-13 |
| CN108797687B true CN108797687B (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810676212.XA Active CN108797687B (en) | 2018-06-27 | 2018-06-27 | Drag head of trailing suction hopper dredger and control method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8800565A (en) * | 1988-03-07 | 1989-10-02 | Johan Klip | River bank vegetation cutter - has vessel mounted, movable arm and sludge suction pipe |
| CN203924166U (en) * | 2014-06-16 | 2014-11-05 | 中交天津航道局有限公司 | The two grid devices of a kind of trailing suction hopper dredger drag head |
| CN204753675U (en) * | 2015-04-23 | 2015-11-11 | 中交疏浚技术装备国家工程研究中心有限公司 | Trailing suction hopper dredger drag arm gesture measuring equipment |
| CN105735398A (en) * | 2016-04-08 | 2016-07-06 | 傅元韬 | Robot for damming and land reclamation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10000905B2 (en) * | 2016-08-16 | 2018-06-19 | Liquid Waste Technology, Llc | Cutterhead debris guard |
-
2018
- 2018-06-27 CN CN201810676212.XA patent/CN108797687B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8800565A (en) * | 1988-03-07 | 1989-10-02 | Johan Klip | River bank vegetation cutter - has vessel mounted, movable arm and sludge suction pipe |
| CN203924166U (en) * | 2014-06-16 | 2014-11-05 | 中交天津航道局有限公司 | The two grid devices of a kind of trailing suction hopper dredger drag head |
| CN204753675U (en) * | 2015-04-23 | 2015-11-11 | 中交疏浚技术装备国家工程研究中心有限公司 | Trailing suction hopper dredger drag arm gesture measuring equipment |
| CN105735398A (en) * | 2016-04-08 | 2016-07-06 | 傅元韬 | Robot for damming and land reclamation |
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| Publication number | Publication date |
|---|---|
| CN108797687A (en) | 2018-11-13 |
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